feat: multiple Select and Bulk Pane Actions (#4169)

* initial implementation with break panes to new tab

* break pane group left/right

* group embed/eject panes

* stack pane group on resize

* close pane group

* style(fmt): rustfmt

* fix tests

* group drag and ungroup with the mouse

* fix mouse hover for multiple clients

* fix for multiple clients

* multiple select plugin initial

* use real data in plugin

* adjust functionality

* fix some ux issues

* reflect group mouse group selections in plugin

* group/ungroup panes in Zellij

* highlight frames when marked by the plugin

* refactor: render function in plugin

* some ui responsiveness

* some more responsiveness and adjust hover text

* break out functionality

* stack functionality

* break panes left/right and close multiple panes

* fix(tab): only relayout the relevant layout when non-focused pane is closed

* status bar UI

* embed and float panes

* work

* fix some ui/ux issues

* refactor: move stuff around

* some responsiveness and fix search result browsing bug

* change plugin pane title

* differentiate group from focused pane

* add keyboard shortcut

* add ui to compact bar

* make boundary colors appear properly without pane frames

* get plugins to also display their frame color

* make hover shortcuts appear on command panes

* fix: do not render search string component if it's empty

* BeforeClose Event and unhighlight panes on exit

* some UI/UX fixes

* some fixes to the catppuccin-latte theme

* remove ungroup shortcut

* make some ui components opaque

* fix more opaque elements

* fix some issues with stacking pane order

* keyboard shortcuts for grouping

* config to opt out of advanced mouse actions

* make selected + focused frame color distinct

* group marking mode

* refactor: multiple-select plugin

* adjust stacking group behavior

* adjust flashing periods

* render common modifier in group controls

* add to compact bar

* adjust key hint wording

* add key to presets and default config

* some cleanups

* some refactoring

* fix tests

* fix plugin system tests

* tests: group/ungroup/hover

* test: BeforeClose plugin event

* new plugin assets

* style(fmt): rustfmt

* remove warnings

* tests: give plugin more time to load

1 files changed, 5 insertions, 0 deletions

diff --git a/default-plugins/fixture-plugin-for-tests/src/main.rs b/default-plugins/fixture-plugin-for-tests/src/main.rs
index 24f0f649..7f66fa4e 100644
--- a/default-plugins/fixture-plugin-for-tests/src/main.rs
+++ b/default-plugins/fixture-plugin-for-tests/src/main.rs
@@ -67,6 +67,7 @@ impl ZellijPlugin for State {
             EventType::FileSystemCreate,
             EventType::FileSystemUpdate,
             EventType::FileSystemDelete,
+            EventType::BeforeClose,
         ]);
         watch_filesystem();
     }
@@ -535,6 +536,10 @@ impl ZellijPlugin for State {
                     self.received_payload = Some(payload.clone());
                 }
             },
+            Event::BeforeClose => {
+                // this is just to assert something to make sure this event was triggered
+                highlight_and_unhighlight_panes(vec![PaneId::Terminal(1)], vec![PaneId::Plugin(1)]);
+            },
             Event::SystemClipboardFailure => {
                 // this is just to trigger the worker message
                 post_message_to(PluginMessage {